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Allison Patricia Rzepczynski, MD

Gastroenterology Physician in Elmhurst, IL · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649708975

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Registry record

Entity type Individual (Type 1)
Name Allison Patricia Rzepczynski
Credential MD
Sex Female
Practice address 1200 S York St Ste 2000, Elmhurst, IL, 60126
Phone (331) 221-9003
Enumeration date May 31, 2017
Last updated in NPPES Jul 26, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 125070546 (IL) Secondary
207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License 036152640 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Allison Rzepczynski practice?
The practice location on file with NPPES is in Elmhurst, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Allison Rzepczynski?
The National Provider Identifier (NPI) for Allison Rzepczynski is 1649708975, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-07-26.